function display_page(need_div)
{
var div_array = document.getElementById("table_main").getElementsByTagName('div');
for (i = 0; i < div_array.length; i++)
{
if (div_array[i] == need_div)
{
div_array[i].style.display = '';
}
else
{
div_array[i].style.display = 'none';
}
}